<template>
<div>
   <!-- 面包屑导航区域 -->
      <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item><a href="/">用户管理</a></el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
  <!-- 卡片视图区域 -->
       
      <el-card >
         <!-- 搜索与添加区域 -->
        <el-row :gutter="20">
          <el-col :span="12"><el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUsersList">
        <el-button slot="append" icon="el-icon-search" @click="getUsersList"></el-button>
        </el-input>
        </el-col>

          <el-col :span="4"><el-button type="primary" @click="addDialogVisible = true">添加用户</el-button></el-col>
        </el-row>
        <!-- 用户列表区域 -->
        <el-table :data="userList" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态" prop="mg_state">
            <!-- 利用作用域插槽，引用数据scope，（为了拿到当前行数据）此时插槽里的数据会覆盖掉prop，所以可删除prop -->
            <template slot-scope="scope">
                <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
            </template>
          </el-table-column>

          <el-table-column label="操作" width="180px" >
            <template slot-scope="scope">
              <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
              <!-- 删除按钮 -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1,2,5,10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
        <!-- 添加用户对话框 -->
            <el-dialog
            title="提示"
            :visible.sync="addDialogVisible"
            width="50%"
            @closed="addDialogClosed">
            <!-- 内容主体部分 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px"  >
              <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
              </el-form-item>
              <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
              </el-form-item>
              <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
              </el-form-item>
              <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
              </el-form-item>
              
            </el-form>
           

            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
              <el-button @click="addDialogVisible = false">取 消</el-button>
              <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
          </el-dialog>
        <!-- 修改用户对话框 -->
        <el-dialog
          title="提示"
          :visible.sync="editDialogVisible"
          width="50%"
          @closed="editDialogClosed">
         <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="170px" >
            <el-form-item label="用户名" >
              <el-input v-model="editForm.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
              <el-input v-model="editForm.email"></el-input>
            </el-form-item>
             <el-form-item label="手机" prop="name">
              <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>
         </el-form>
          <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
          </span>
        </el-dialog>
        <!-- 显示分配角色对话框 -->
        <el-dialog
          title="提示"
          :visible.sync="setRoleDialogVisible"
          width="30%"
          @closed="setRoleDialogClosed">
          <div>
            <p>当前的用户：{{userInfo.username}}</p>
            <p>当前的角色：{{userInfo.role_name}}</p>
            <p>分配新角色：
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                      v-for="item in rolesList"
                      :key="item.id"
                      :label="item.roleName"
                      :value="item.id">
                    </el-option>
                </el-select>
            </p>
          </div>
          <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
          </span>
        </el-dialog>
          
          
      </el-card>

</div>
 
</template>

<script>

export default {
name: 'Users',
data(){

  //验证邮箱的规则
 var checkEmail = (rule, value, callback) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/ // 验证邮箱的正则表达式
      if (regEmail.test(value)) {
        return callback() // 合法邮箱
      }
      // 返回一个错误提示
      callback(new Error('请输入合法的邮箱'))
    }
    // 验证手机的规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return callback()
      }
      // 返回一个错误提示
      callback(new Error('请输入合法的手机号码'))
    }
  return{
    //获取用户列表参数对象
    queryInfo:{
      //搜索关键字（查询参数）
      query:'',
      //当前所在的页数
      pagenum:1,
      //当前每页显示多少条数据
      pagesize:2
    },
    userList:[],
    total: 0,
    //控制添加用户对话框的显示与隐藏
    addDialogVisible:false,
    //添加用户的表单数据
    addForm:{
      username:'',
      password:'',
      email:'',
      mobile:''
    },
    //添加表单的验证规则对象
    addFormRules:{
      username:[
        //trigger: 'blur' 失去焦点时触发这次验证
         { required: true, message: '请输入用户名', trigger: 'blur' },
        { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
      ],
       password:[
        //trigger: 'blur' 失去焦点时触发这次验证
         { required: true, message: '请输入密码', trigger: 'blur' },
        { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
      ],
       email:[
        //校验是否输入邮箱
         { required: true, message: '请输入邮箱', trigger: 'blur' },
        //  校验是否合法
        {vaildator:checkEmail,trigger:'blur'}
      ],
       mobile:[
         { required: true, message: '请输入手机', trigger: 'blur' },
        {vaildator:checkMobile,trigger:'blur'}
      ],
    },
     //控制修改用户对话框的显示与隐藏
    editDialogVisible:false,
    // 查询到的信息对象
    editForm:{},
    // 修改表单的验证规则对象
      editFormRules:{
       email:[
        //校验是否输入邮箱
         { required: true, message: '请输入邮箱', trigger: 'blur' },
        //  校验是否合法
        {vaildator:checkEmail,trigger:'blur'}
      ],
       mobile:[
         { required: true, message: '请输入手机', trigger: 'blur' },
        {vaildator:checkMobile,trigger:'blur'}
      ],
    },
    setRoleDialogVisible: false,
    // 需要被分配角色的用户信息
    userInfo:{},
    rolesList:[],
    // 已选中的角色ID值
    selectedRoleId:''
  }
},
created(){
  this.getUsersList()

},
methods:{
  //获取数据
 async getUsersList(){
    const{data:res} =  await this.$http.get('users',{params:this.queryInfo})
    // console.log(res);
    if(res.meta.status !== 200){this.$message.error(res.meta.msg)}
    this.userList= res.data.users
    this.total =res.data.total
  },
  //改变每页显示多少条数据
  handleSizeChange(newSize){
        this.queryInfo.pagesize= newSize
        this.getUsersList()
  },
  // 改变当前显示第几页数据
  handleCurrentChange(newPage){
      this.queryInfo.pagenum = newPage
      this.getUsersList()
  },
  //修改用户状态请求
 async userStateChanged(userinfo){

      const{data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if(res.meta.status!==200){
        userinfo.mg_state =!userinfo.mg_state
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)

  },
  //监听添加用户对话框的关闭
  addDialogClosed(){
    this.$refs.addFormRef.resetFields()
  },
  // 点击按钮，添加新用户
   addUser(){
    // 添加新用户预校验
    this.$refs.addFormRef.validate(async valid=>{
      if(!valid) return
      // 可以发起添加用户网络请求
      const{data:res}= await this.$http.post('users',this.addForm)
      if(res.meta.status!==201) return this.$message.error(res.meta.msg)
      this.$message.success(res.meta.msg)
      // 隐藏添加用户的对话框
      this.addDialogVisible =false
      // 重新获取用户列表
      this.getUsersList() 
    })
  },
  // 展示编辑用户对话框
  async showEditDialog(id){
    // console.log(id);
    const {data:res}= await this.$http.get('users/'+ id)
    if(res.meta.status !==200) return this.$message.error(res.meta.msg)
    this.$message.success(res.meta.msg)
    this.editForm =res.data
  this.editDialogVisible = true
  },
  //监听修改用户对话框关闭
  editDialogClosed(){
    this.$refs.editFormRef.resetFields()
  },
  // 修改用户信息并提交
  editUserInfo(){
    this.$refs.editFormRef.validate(async valid =>{
      // console.log(valid);
      if(!valid) return
      const {data:res} = await this.$http.put('users/' + this.editForm.id ,
      {email:this.editForm.email,
      mobile:this.editForm.mobile})
      if(res.meta.status !==200) return this.$message.error(res.meta.msg)
     //关闭对话框
      this.editDialogVisible =false 
      //  刷新数据列表
      this.getUsersList()
      // 提示修改成功
      this.$message.success(res.meta.msg)
      

   
    })


  },
  // 根据ID删除对应的用户信息
  async removeUserById(id){
    // console.log(id);
    // 弹框询问用户是否删除数据
    const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
      // console.log(confirmResult);
    // 如果用户确认删除返回字符串 comfirm
    // 如果用户取消了删除返回字符串 cancel
    if(confirmResult !== 'confirm'){
      return this.$message.info('已取消删除')
    }
     const {data:res} = await this.$http.delete('users/' + id)
    //  console.log(res);
        if(res.meta.status !==200) {
          return this.$message.error('失败')
        }
        this.$message.success('成功')
        this.getUsersList()
      },
     // 显示分配角色对话框
   async setRole(userinfo){
     this.userInfo = userinfo
    //  展示对话框前获取角色列表
    const {data:res} = await this.$http.get('roles')
    this.rolesList =res.data
    // console.log(this.rolesList);
    this.setRoleDialogVisible = true
    // const {data:res} =await this.$http.put('users/${id}/role')

  },
  // 点击按钮分配角色
  async saveRoleInfo(){
    if(!this.selectedRoleId){
      return this.$message.error('请选择要分配的角色')
    }
    const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
    if(res.meta.status !== 200){
      return this.$message.error(res.meta.msg)
    }
    this.getUsersList()
    this.setRoleDialogVisible = false
    this.$message.success(res.meta.msg)

  },
  // 监听分配角色对框框关闭事件
  setRoleDialogClosed(){
    this.selectedRoleId = '',
    this.userInfo = {}
    
  }

  }
 


}
</script>

<style scoped>
</style>